title: U2FPinValue
type: object
additionalProperties: false
description: >
  U2F challenge-response, where payer FSP verifies if the response
  provided by end-user device matches the previously registered key.
properties:
  pinValue:
    allOf:
      - $ref: ./U2FPIN.yaml
    description: U2F challenge-response.
  counter:
    allOf:
      - $ref: './Integer.yaml'
    description: >-
      Sequential counter used for cloning detection. Present only for U2F
      authentication.
required:
  - pinValue
  - counter